<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" th:href="@{/layui/css/layui.css}" media="all">
    <script th:src="@{/layui/layui.js}" charset="utf-8"></script>
    <script th:src="@{/js/jquery-2.2.3.min.js}" charset="utf-8"></script>
    <title>Title</title>
</head>
<style type="text/css">
    body {
        background: url("/img/kk.jpg") ;
    }

</style>

<body>




</body>
</html>